HuntingNet.com Forums - View Single Post - Checking arrow straightness

05-08-2006 | 09:18 PM

#7

Len in Maryland

Joined: Feb 2003

Posts: 1,385

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From: Baltimore Maryland USA

RE: Checking arrow straightness

I think Paul's comments are worth repeating:

Quote:

I have seen MANY carbons that were not straight, right out of the box.

Will you notice it? Depends on how well you shoot and what you are doing. For 20- 30 yards with field tips, maybe not unless you have excellent form. Now put a fixed blade head on it and it will be quite noticable if you try to tune or group them. Also the amount of fletch and FOC you have may make a difference as well.

The biggest thing is if the arrow is not straight, especially a carbon then chances are the spine is not correct either.

Whether or not you will see the differential between a straight arrow and one that is not, is how you perform an analytical test, what standards you decide to set, and which end of the arrow your examining. The nock end is really the critical end since the thrust/pressure will be applied at this end. If the straightness iseven a degree or two off over a distanceof as much asan inch or two, you will see a difference of impact at 20 yards of inches with fixed BHs.

Just tonight I decided to check this issue to ascertain that some of my target arrows could make my hunting quiver. I found two out of five that just weren't even close to being good enough and the culprit was the nock end. One arrow had the nock end damaged slightly last year and I had placed a 'black' nock on it,as I usually do for recognizing a bad arrow. The other one was not as obvious but was just as bad. Both of these arrows had up to a 3-4" variation in POI at twenty yards with Muzzy practice blades. I tested all five arrows over and over using various methods and all the conclusions were consistent.

To confirm my test methods and results I grabbed two arrows from my hunting quiver and used the same BHs. The difference was absolute and conclusive. The straight arrows consistently outshot the ones with a VERY slight bend.

So, my conclusion is that straightness DOES matter. It can also adversely affect the spine of an arrow.

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